Chosen Solution
My MacBook Pro won’t boot unless plugged in, when I do plug it in I don’t have to even press the power button for it to turn on. However after removing the charger it will turn off after 1 minute usually. It is showing that it’s charging, it’s currently at 80%. There’s also an issue with the screen, there’s a thick line that is high contrast, and when it gets hot it goes to a lower contrast. I’ve tried Resetting SMC and NVRAM neither helped. There was a recent spill, however it was cleaned up deeply internally and there wasn’t a boot issue until I put it back together. The screen issue was there immediately after the spill but a lot worse, I could even read anything as it was a fully broken up image. When I check the cause of shutdown they are all okay except for when I unplug, it says -14 which I’ve read is a power surge. Any ideas would be really appreciated. Thanks :) Update (10/08/2021)
This is the coconutBattery screenshot
Sadly you need a new battery! The number of cycles has exceeded its 1,000 cycles the battery is rated too Determine battery cycle count for Mac notebooks. Given the systems age you are a heavy remote user. You tend to let the battery run to empty and then charge it. Each time to let the system get past the 2/3 point your battery needs to work harder to charge it and burns a cycle. The number of cycles wear the battery. Here’s the needed part MacBook Pro 13" Retina (A1989, A2251) Battery and here’s the guide to put it in MacBook Pro 13" Touch Bar 2019 Battery Replacement
